Flexible wire harness with a predetermined path

Abstract

A wire harness includes a circuit unit having a plurality of electric wires with a predetermined path, a first soft sheet material formed into the shape as that of the predetermined path and a second soft sheet material adhesively joined to the first soft sheet material so that the circuit unit is interposed between the first and the second soft sheet materials.

What is claimed is: 
     
       1. A wire harness, comprising: a circuit unit having a plurality of electric wires interposed between two soft sheets in a predetermined path, at least one of the two soft sheets being shaped by a vacuum forming die to have a three-dimensional configuration defined at least in part by a columnar projection on the forming die, the two soft sheets being formed of a molded thermal plastic resin including a base material and a plasticizer in a ratio of at least 15 parts of plasticizer to 100 parts of base material, thereby providing for rolling of the wire harness for storage and unrolling for use without affecting the three-dimensional configuration of the at least one sheet. 
     
     
       2. The wire harness of claim 1, wherein the two sheets are adhesively joined to each other. 
     
     
       3. The wire harness of claim 2, wherein one of the two soft sheets is coated with an adhesive means on a joint portion between said soft sheet material and said circuit unit. 
     
     
       4. The wire harness of claim 1, wherein one of said two soft sheets is formed into the same shape as that of said predetermined path of said circuit unit. 
     
     
       5. The wire harness of claim 1, wherein the ratio of base material and the plasticizer is between 30 to 60 parts of plasticizer to 100 parts of base material. 
     
     
       6. The wire harness of claim 1, wherein the two sheets have a thickness of 200 μm or less.